Radovanović Milan B, Tasić Žaklina Z, Simonović Ana T, Petrović Mihajlović Marija B, Antonijević Milan M
Technical Faculty in Bor, University of Belgrade, VJ 12, P.O. Box 50, 19210 Bor, Serbia.
ACS Omega. 2020 May 29;5(22):12768-12776. doi: 10.1021/acsomega.0c00390. eCollection 2020 Jun 9.
Titanium is one of the most used biomaterials for different applications. The aim of this study is to investigate the influence of adenine, thymine, and l-histidine as important biomolecules in the human body on the corrosion behavior of titanium in simulated body solutions. Open circuit measurements, potentiodynamic measurements, electrochemical impedance spectroscopy measurements, and quantum chemical calculations were employed during the investigation. All electrochemical methods used revealed that the investigated biomolecules provide better corrosion resistance to titanium in artificial body solutions. The increase in corrosion resistance is a result of the formation of a stable protective film on the metal surface. Also, quantum chemical calculations are in compliance with electrochemical test results and indicate that adenine, thymine, and l-histidine may act as corrosion inhibitors in the investigated solutions.
钛是用于不同应用的最常用生物材料之一。本研究的目的是研究人体中重要生物分子腺嘌呤、胸腺嘧啶和L-组氨酸对钛在模拟体液中的腐蚀行为的影响。研究过程中采用了开路测量、动电位测量、电化学阻抗谱测量和量子化学计算。所有使用的电化学方法均表明，所研究的生物分子在人工体液中能为钛提供更好的耐腐蚀性。耐腐蚀性的提高是金属表面形成稳定保护膜的结果。此外，量子化学计算与电化学测试结果相符，表明腺嘌呤、胸腺嘧啶和L-组氨酸在所研究的溶液中可能作为缓蚀剂。
